L
lezmclair
Hi I have had reason to drain my central heating system and take off 2 radiators. After refilling and turning the system back on,everything seemed ok. After switching the boiler on, it went to standby mode (O) on the control unit. Then after switching on the CH and hot water on the controller in the house, the LED flashed, then remained on after the boiler fired up and the control unit showed (C). However the boiler only runs for a while then stops. There is no fault code, just the LED light blinking on and off. The control unit still shows (C). I had a similar problem a couple of years ago during Winter when the condensate trap was clogged up with ice. After defrosting it, it worked fine again. I have tried removing the condensate trap, cleaned it out (there was a fair bit of crud in it), refilled it with clean water and refitted it. I thought this might have solved the problem. But again the boiler just ran for a few minutes then cut out with the LED just blinking off and on and the control unit showing (C). Any ideas?? Cheers. lez